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Setting default values for columns in JPA
Is it possible to set a default value for columns in JPA, and if, how is it done using annotations?
18 Answers
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Correct way to convert size in bytes to KB, MB, GB in JavaScript
...B', 'TB'];
if (bytes == 0) return '0 Byte';
var i = parseInt(Math.floor(Math.log(bytes) / Math.log(1024)));
return Math.round(bytes / Math.pow(1024, i), 2) + ' ' + sizes[i];
}
Note : This is original code, Please use fixed version below. Aliceljm does not active her copied code anymore
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What is the pythonic way to avoid default parameters that are empty lists?
...fault parameter which is an empty list. Yet Python gives unexpected behavior in these situations .
9 Answers
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CSS: How do I auto-resize an image to fit a 'div' container?
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Do not apply an explicit width or height to the image tag. Instead, give it:
max-width:100%;
max-height:100%;
Also, height: auto; if you want to specify a width only.
Example: http://jsfiddle.net/xwrvxser/1/
img {
max-width: 100%;
max-he...
How to escape hash character in URL
How to escape the # hash sign (sometimes known as number sign or pound sign) sent in the query string of a URL?
1 Answer
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UIViewContentModeScaleAspectFill not clipping
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Can you try setting clip to bounds
[_photoview setClipsToBounds:YES];
Or directly in your Storyboard / Xib if you can :
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How to rollback a specific migration?
...ration you want to rollback is the last one applied. You can substitute 1 for however many migrations you want to go back.
For example:
rake db:rollback STEP=5
Will also rollback all the migration that happened later (4, 3, 2 and also 1).
To roll back all migrations back to (and including) a ta...
Why is TypedReference behind the scenes? It's so fast and safe… almost magical!
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Short answer: portability.
While __arglist, __makeref, and __refvalue are language extensions and are undocumented in the C# Language Specification, the constructs used to implement them under the hood (vararg calling conventio...
How to get last items of a list in Python?
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You can use negative integers with the slicing operator for that. Here's an example using the python CLI interpreter:
>>> a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
>>> a[-9:]
[4, 5, 6, 7, 8, 9, 10, 11, ...
A quick and easy way to join array elements with a separator (the opposite of split) in Java [duplic
...an do this in a very clean way:
String.join(delimiter, elements);
This works in three ways:
1) directly specifying the elements
String joined1 = String.join(",", "a", "b", "c");
2) using arrays
String[] array = new String[] { "a", "b", "c" };
String joined2 = String.join(",", array);
3) us...